Wow! Portal is freaking AWESOME!!!
I just played all the way through it. It took me about 3 hours but it was a HELL of a lot of fun. Extremely original and pretty damned funny too.
I didn't do the bonus levels yet though.
I'm totally surprised. I didn't expect this much from Portal.
For those that haven't beaten it yet, its worth playing through. It isn't all just a series of pointless puzzles start to finish.
Also, the ending credits and music are freaking hilarious.
Without even playing Episode 2 yet, I can already see the Orange box being one of the best package deals in gaming history.